import assert = require("assert");
import * as fs from "fs";
import * as events from "events";
import * as zlib from "zlib";
import * as url from "url";
import * as util from "util";
import * as crypto from "crypto";
import * as tls from "tls";
import * as http from "http";
import * as https from "https";
import * as net from "net";
import * as dgram from "dgram";
import * as querystring from "querystring";
import * as path from "path";
import * as readline from "readline";
import * as childProcess from "child_process";
import * as string_decoder from "string_decoder";

assert(1 + 1 - 2 === 0, "The universe isn't how it should.");

assert.deepEqual({ x: { y: 3 } }, { x: { y: 3 } }, "DEEP WENT DERP");

assert.equal(3, "3", "uses == comparator");

assert.notStrictEqual(2, "2", "uses === comparator");

assert.throws(() => { throw "a hammer at your face"; }, undefined, "DODGED IT");

assert.doesNotThrow(() => {
    const b = false;
    if (b) { throw "a hammer at your face"; }
}, undefined, "What the...*crunch*");

////////////////////////////////////////////////////
/// File system tests : http://nodejs.org/api/fs.html
////////////////////////////////////////////////////
fs.writeFile("thebible.txt",
    "Do unto others as you would have them do unto you.",
    assert.ifError);

fs.write(1234, "test");

fs.writeFile("Harry Potter",
    "\"You be wizzing, Harry,\" jived Dumbledore.",
    {
        encoding: "ascii"
    },
    assert.ifError);

fs.writeFileSync("testfile", "content", { encoding: "utf8" });

fs.appendFile("testfile", "foobar", { encoding: "utf8" }, assert.ifError);
fs.appendFileSync("testfile", "foobar", { encoding: "utf8" });

var content: string,
    buffer: Buffer;

content = fs.readFileSync('testfile', 'utf8');
content = fs.readFileSync('testfile', {encoding : 'utf8'});
buffer = fs.readFileSync('testfile');
buffer = fs.readFileSync('testfile', {flag : 'r'});
fs.readFile('testfile', 'utf8', (err, data) => content = data);
fs.readFile('testfile', {encoding : 'utf8'}, (err, data) => content = data);
fs.readFile('testfile', (err, data) => buffer = data);
fs.readFile('testfile', {flag : 'r'}, (err, data) => buffer = data);

class Networker extends events.EventEmitter {
    constructor() {
        super();

        this.emit("mingling");
    }
}

var errno: number;
fs.readFile('testfile', (err, data) => {
    if (err && err.errno) {
        errno = err.errno;
    }
});


///////////////////////////////////////////////////
/// Net Tests : https://nodejs.org/api/net.html ///
///////////////////////////////////////////////////

namespace net_tests {
    {
        /**
         * net.Socket - events.EventEmitter
         */
        let _socket: net.Socket = new net.Socket({
            fd: 1,
            allowHalfOpen: false,
            readable: false,
            writable: false
        });
    }
}

///////////////////////////////////////////////////////
/// Buffer tests : https://nodejs.org/api/buffer.html
///////////////////////////////////////////////////////

function bufferTests() {
    var utf8Buffer = new Buffer('test');
    var base64Buffer = new Buffer('','base64');
    var octets: Uint8Array = null;
    var octetBuffer = new Buffer(octets);
    console.log(Buffer.isBuffer(octetBuffer));
    console.log(Buffer.isEncoding('utf8'));
    console.log(Buffer.byteLength('xyz123'));
    console.log(Buffer.byteLength('xyz123', 'ascii'));
    var result1 = Buffer.concat([utf8Buffer, base64Buffer]);
    var result2 = Buffer.concat([utf8Buffer, base64Buffer], 9999999);

    // Test that TS 1.6 works with the 'as Buffer' annotation
    // on isBuffer.
    var a: Buffer | number;
    a = new Buffer(10);
    if (Buffer.isBuffer(a)) {
        a.writeUInt8(3, 4);
    }

    // write* methods return offsets.
    var b = new Buffer(16);
    var result: number = b.writeUInt32LE(0, 0);
    result = b.writeUInt16LE(0, 4);
    result = b.writeUInt8(0, 6);
    result = b.writeInt8(0, 7);
    result = b.writeDoubleLE(0, 8);

    // fill returns the input buffer.
    b.fill('a').fill('b');
}


////////////////////////////////////////////////////
/// Url tests : http://nodejs.org/api/url.html
////////////////////////////////////////////////////

url.format(url.parse('http://www.example.com/xyz'));

// https://google.com/search?q=you're%20a%20lizard%2C%20gary
url.format({
    protocol: 'https',
    host: "google.com",
    pathname: 'search',
    query: { q: "you're a lizard, gary" }
});

var helloUrl = url.parse('http://example.com/?hello=world', true)
assert.equal(helloUrl.query.hello, 'world');


// Old and new util.inspect APIs
util.inspect(["This is nice"], false, 5);
util.inspect(["This is nice"], false, null);
util.inspect(["This is nice"], { colors: true, depth: 5, customInspect: false });
util.inspect(["This is nice"], { colors: true, depth: null, customInspect: false });

////////////////////////////////////////////////////
/// Stream tests : http://nodejs.org/api/stream.html
////////////////////////////////////////////////////

// http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
function stream_readable_pipe_test() {
    var r = fs.createReadStream('file.txt');
    var z = zlib.createGzip();
    var w = fs.createWriteStream('file.txt.gz');
    r.pipe(z).pipe(w);
    r.close();
}

////////////////////////////////////////////////////
/// Crypto tests : http://nodejs.org/api/crypto.html
////////////////////////////////////////////////////

var hmacResult: string = crypto.createHmac('md5', 'hello').update('world').digest('hex');

function crypto_cipher_decipher_string_test() {
    var key:Buffer = new Buffer([1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 2, 3, 4, 5, 6, 7]);
    var clearText:string = "This is the clear text.";
    var cipher:crypto.Cipher = crypto.createCipher("aes-128-ecb", key);
    var cipherText:string = cipher.update(clearText, "utf8", "hex");
    cipherText += cipher.final("hex");

    var decipher:crypto.Decipher = crypto.createDecipher("aes-128-ecb", key);
    var clearText2:string = decipher.update(cipherText, "hex", "utf8");
    clearText2 += decipher.final("utf8");

    assert.equal(clearText2, clearText);
}

function crypto_cipher_decipher_buffer_test() {
    var key:Buffer = new Buffer([1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 2, 3, 4, 5, 6, 7]);
    var clearText:Buffer = new Buffer([1, 2, 3, 4, 5, 6, 7, 8, 9, 8, 7, 6, 5, 4]);
    var cipher:crypto.Cipher = crypto.createCipher("aes-128-ecb", key);
    var cipherBuffers:Buffer[] = [];
    cipherBuffers.push(cipher.update(clearText));
    cipherBuffers.push(cipher.final());

    var cipherText:Buffer = Buffer.concat(cipherBuffers);

    var decipher:crypto.Decipher = crypto.createDecipher("aes-128-ecb", key);
    var decipherBuffers:Buffer[] = [];
    decipherBuffers.push(decipher.update(cipherText));
    decipherBuffers.push(decipher.final());

    var clearText2:Buffer = Buffer.concat(decipherBuffers);

    assert.deepEqual(clearText2, clearText);
}

////////////////////////////////////////////////////
/// TLS tests : http://nodejs.org/api/tls.html
////////////////////////////////////////////////////

var ctx: tls.SecureContext = tls.createSecureContext({
    key: "NOT REALLY A KEY",
    cert: "SOME CERTIFICATE",
});
var blah = ctx.context;

////////////////////////////////////////////////////

// Make sure .listen() and .close() retuern a Server instance
http.createServer().listen(0).close().address();
net.createServer().listen(0).close().address();

var request = http.request('http://0.0.0.0');
request.once('error', function () {});
request.setNoDelay(true);
request.abort();

////////////////////////////////////////////////////
/// Http tests : http://nodejs.org/api/http.html
////////////////////////////////////////////////////
namespace http_tests {
    // Status codes
    var code = 100;
    var codeMessage = http.STATUS_CODES['400'];
    var codeMessage = http.STATUS_CODES[400];

    var agent: http.Agent = new http.Agent({
        keepAlive: true,
        keepAliveMsecs: 10000,
        maxSockets: Infinity,
        maxFreeSockets: 256
    });

    var agent: http.Agent = http.globalAgent;

    http.request('http://www.example.com/xyz');
}

////////////////////////////////////////////////////
/// Https tests : http://nodejs.org/api/https.html
////////////////////////////////////////////////////
namespace https_tests {
    https.request('http://www.example.com/xyz');
}

////////////////////////////////////////////////////
/// Dgram tests : http://nodejs.org/api/dgram.html
////////////////////////////////////////////////////

var ds: dgram.Socket = dgram.createSocket("udp4", (msg: Buffer, rinfo: dgram.RemoteInfo): void => {
});
var ai: dgram.AddressInfo = ds.address();
ds.send(new Buffer("hello"), 0, 5, 5000, "127.0.0.1", (error: Error, bytes: number): void => {
});

////////////////////////////////////////////////////
///Querystring tests : https://gist.github.com/musubu/2202583
////////////////////////////////////////////////////

var original: string = 'http://example.com/product/abcde.html';
var escaped: string = querystring.escape(original);
console.log(escaped);
// http%3A%2F%2Fexample.com%2Fproduct%2Fabcde.html
var unescaped: string = querystring.unescape(escaped);
console.log(unescaped);
// http://example.com/product/abcde.html

////////////////////////////////////////////////////
/// path tests : http://nodejs.org/api/path.html
////////////////////////////////////////////////////

namespace path_tests {

    path.normalize('/foo/bar//baz/asdf/quux/..');

    path.join('/foo', 'bar', 'baz/asdf', 'quux', '..');
    // returns
    //'/foo/bar/baz/asdf'

    try {
        path.join('foo', {}, 'bar');
    }
    catch(error) {

    }

    path.resolve('foo/bar', '/tmp/file/', '..', 'a/../subfile');
    //Is similar to:
    //
    //cd foo/bar
    //cd /tmp/file/
    //cd ..
    //    cd a/../subfile
    //pwd

    path.resolve('/foo/bar', './baz')
    // returns
    //    '/foo/bar/baz'

    path.resolve('/foo/bar', '/tmp/file/')
    // returns
    //    '/tmp/file'

    path.resolve('wwwroot', 'static_files/png/', '../gif/image.gif')
    // if currently in /home/myself/node, it returns
    //    '/home/myself/node/wwwroot/static_files/gif/image.gif'

    path.isAbsolute('/foo/bar') // true
    path.isAbsolute('/baz/..')  // true
    path.isAbsolute('qux/')     // false
    path.isAbsolute('.')        // false

    path.isAbsolute('//server')  // true
    path.isAbsolute('C:/foo/..') // true
    path.isAbsolute('bar\\baz')   // false
    path.isAbsolute('.')         // false

    path.relative('C:\\orandea\\test\\aaa', 'C:\\orandea\\impl\\bbb')
// returns
//    '..\\..\\impl\\bbb'

    path.relative('/data/orandea/test/aaa', '/data/orandea/impl/bbb')
// returns
//    '../../impl/bbb'

    path.dirname('/foo/bar/baz/asdf/quux')
// returns
//    '/foo/bar/baz/asdf'

    path.basename('/foo/bar/baz/asdf/quux.html')
// returns
//    'quux.html'

    path.basename('/foo/bar/baz/asdf/quux.html', '.html')
// returns
//    'quux'

    path.extname('index.html')
// returns
//    '.html'

    path.extname('index.coffee.md')
// returns
//    '.md'

    path.extname('index.')
// returns
//    '.'

    path.extname('index')
// returns
//    ''

    'foo/bar/baz'.split(path.sep)
// returns
//        ['foo', 'bar', 'baz']

    'foo\\bar\\baz'.split(path.sep)
// returns
//        ['foo', 'bar', 'baz']

    console.log(process.env.PATH)
// '/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin'

    process.env.PATH.split(path.delimiter)
// returns
//        ['/usr/bin', '/bin', '/usr/sbin', '/sbin', '/usr/local/bin']

    console.log(process.env.PATH)
// 'C:\Windows\system32;C:\Windows;C:\Program Files\nodejs\'

    process.env.PATH.split(path.delimiter)
// returns
//        ['C:\Windows\system32', 'C:\Windows', 'C:\Program Files\nodejs\']

    path.parse('/home/user/dir/file.txt')
// returns
//    {
//        root : "/",
//        dir : "/home/user/dir",
//        base : "file.txt",
//        ext : ".txt",
//        name : "file"
//    }

    path.parse('C:\\path\\dir\\index.html')
// returns
//    {
//        root : "C:\",
//        dir : "C:\path\dir",
//        base : "index.html",
//        ext : ".html",
//        name : "index"
//    }

    path.format({
        root : "/",
        dir : "/home/user/dir",
        base : "file.txt",
        ext : ".txt",
        name : "file"
    });
// returns
//    '/home/user/dir/file.txt'
}

////////////////////////////////////////////////////
///ReadLine tests : https://nodejs.org/api/readline.html
////////////////////////////////////////////////////

var rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
});

rl.setPrompt("$>");
rl.prompt();
rl.prompt(true);

rl.question("do you like typescript?", function(answer: string) {
  rl.close();
});

////////////////////////////////////////////////////
/// string_decoder tests : https://nodejs.org/api/string_decoder.html
////////////////////////////////////////////////////

namespace string_decoder_tests {
    var StringDecoder = string_decoder.StringDecoder;
    var buffer = new Buffer('test');
    var decoder = new StringDecoder('utf8');
    var part: string = decoder.write(new Buffer('test'));
    var end: string = decoder.end();
}

//////////////////////////////////////////////////////////////////////
/// Child Process tests: https://nodejs.org/api/child_process.html ///
//////////////////////////////////////////////////////////////////////

childProcess.exec("echo test");
childProcess.spawnSync("echo test");

////////////////////////////////////////////////////
/// zlib tests : http://nodejs.org/api/zlib.html ///
////////////////////////////////////////////////////

namespace zlib_tests {
    {
        const gzipped = zlib.gzipSync('test');
        const unzipped = zlib.gunzipSync(gzipped.toString());
    }

    {
        const deflate = zlib.deflateSync('test');
        const inflate = zlib.inflateSync(deflate.toString());
    }
}
